Here is the full list of all 77 Tower of Time achievements.
Get Cindros Sword
Win combat with health and mana of every champion under 10%
Win battle when whole party has less than 10 HP
Use Blind Rage 2 times in one combat
Withdraw from battle 100 times.
Apply weakness to 20 enemies in one combat.
Use Gravity Well 4 times in one combat
Cast Elemental Barrage 25 times in one combat
Deal 10000 damage in one combat with Rain of Arrows
Kill 3 enemies in one fight with Headshot
Place Exploding Runes 5 times in one combat
Cast Fireball 5 times in one combat
Win battle with a caged hero
Reach the ultimate attribute cap of 40 for any attribute.
Blind 20 enemies in one combat
Kill 5 enemies in one combat with Blades of Justice
Summon Mech 4 times in one combat
Transmute gems 30 times
Win a fight on level 4 or higher with 2 or less champions
Use Dash skill 10 times in one combat
Use Teleport 5 times in one combat
Equip all Relics on one character
Increase a single skill to a maximum.
Learn all 6 skills on a single hero.
Reach the 25 point attribute cap for any attribute.
Unlock Mystic Whisper.
Find all Sleath notes.
Finish battle with full hp of whole party
Unlock Blademaster Boron.
Resolve the conflicts between the Water and Earth Servants.
Apply 30 upgrades to items
Apply 10 enchantments
Reach level 6 with any hero.
Solve the puzzle of the clocks.
Craft 30 items
Defeat Ancient Guard
Unlock Runelord Rakhem.
Deal 1000 damage with Ent in one combat
Heal 1000 damage in one fight with Healing Totem
Upgrade Mage Tower.
Heal hero which has less than 5 HP
Kill 100 enemies.
Unlock Druid Aeric.
Win battle with just one champion
Kill death reaper
Equip all items for a hero.
Upgrade Armory.
Use Teleporter.
Obtain a legendary item.
Kill first enemy